| Summary: | The Chilean mollusc collection of the Maggiorino Borgatello Salesian Museum (Punta Arenas, Chile) was created around the year 1905 aiming to preserve mollusc local knowledge. Since then until mid-twentieth century many specimens had been incorporated into the collection, which were identified by local curators, but never underwent a comprehensive inventory and taxonomic identification. This report provides comprehensive information on the taxonomy and distribution of mollusc species currently present in the museum. We recorded 37 species of molluscs (26 gastropods and 11 bivalves), of which 19 are commercially important species. From the biogeographical standpoint, the collection represents about 4% of the registered molluscs for the Chilean territory and about 10% of that reported for the Magellan Region. At the species level, we highlight the presence of specimens of Photinula roseolineata, Calliostoma irisans and Buccinanops paytensis, which have very few records in the Magellanic Biogeographic Province. The maintenance and preservation of this mollusc collection has great local and regional relevance as a way of preserving cultural heritage of this southern part of the world. La colección de moluscos chilenos del Museo Salesiano Maggiorino Borgatello (Punta Arenas, Chile) fue creada alrededor del año 1905 con el objetivo de rescatar el conocimiento local de la malacofauna. Desde esa fecha hasta mediados del siglo XX se habían ingresado numerosos especimenes, los cuales fueron identificados por curadores locales, pero que nunca fueron sometidos a un inventario exhaustivo ni identificación taxonómica. Este trabajo entrega información sobre las especies de moluscos que actualmente están presentes en el museo. Se registraron un total 37 especies de moluscos (26 gasterópodos y 11 bivalvos), de las cuales 19 corresponden a especies de interés comercial. Desde el punto de vista biogeográfico, la colección representa alrededor del 4% de la malacofauna registrada para el territorio chileno y alrededor del 10% de la ...
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